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BLETRIGALLY OPERATED RAILROAD TURN TABLE.

Patented Mar. 20, 1894.

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Inventar Howe E. Danzenhmler j his flftow ys Witnesses:

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UNITED STATES HOWE E. DANZEN BAKER, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOROF PATENT OFFICE.

ONE-HALF TO CHARLES F. KINDRED, OF 'SAME PLACE.

ElLECTRlCALLYrOPERATED RAILROAD TU RN-TABLE.

SPECIFICATION forming part of Letters 'Patent No. 517,000, dated March 20, 1894.

Application iiled May 29, 1893. Serial No. 475,936. (No model.)

To all whom it may concern:

Be it known that I, HOWE E. DANZENBAKER,

a citizen of the United States, residing in Phil! adelphia, Pennsylvania, have invented certain Improvements in Electrically-Operated Railroad Turn-Tables, of which the following is a specification.

The object of my invention is to operate a railway turn table by electricity. This object I attain in the following manner, refer' lpensive as it requires the attendance of an engineer at all times. By my invention this expense is obviated, as the engineer or tireman of the locomotive can operate the electric switch mechanism, and the device can be placed within the frame of the turn table.

A is the turn table mounted in theusual pit, having side frames a a, tied together in the ordinary manner. Upon the turn table are mounted the cross ties a and rails b.

The pivot B of the turn table is of the ordinary construction. In fact I can apply my improvement to any of the turn tables now in use.

The turn table has the ordinary bearing wheels c c, at each end, and is free to rock upon its pivot, as usual.

D is a frame pivoted to a bar d, some distance from one end of the turn table, so that the turn table can rock without interfering with the traction of the driving wheel E, which rests upon the annular rail C. If the traction wheel was rigidly mounted on the turn table frame, it would, in some instances, be raised clear of the track, but by mounting it on the pivoted frame, it will at all times rest upon the track, and the weight of the parts carried by the frame, will give it sufficient traction.

F is the electric motor, and on the shaft f of this motor is a gear wheel f', meshing with a pinion e on the shaftfe, carrying the traction wheel E. This shaft is mounted in suitable bearings on the frame D. I preferably extend the electric wires from the center of the turn table through a tube 'i (Fig. 2), and a brush or other suitable contact may be used at the center so that the turn table will be free to rotate Without breaking the circuit. In some instances, the trolley wire may be arranged around the pit as shown by dotted lines in Fig. 2, and a brush or trolley wheel would project from the turn table and would bear against this wire, but I prefer to run the wires through the center, as they are not exposed.

Thus it will be seen by the above described construction, that the turn table can be readily operated by simply turning an electric switch wheel G, mounted at one side of the track on the turn table, and the turn table is free to rock while the traction of the driving wheel is assured, as the motor and the driving wheel, as remarked above, are on the frame pivoted to theturn table.

I claim as my invention- Q l. The combination of the turn table having side frames, a supporting frame mounted between the side frames and below the track, an electric motor on said frame, a traction wheel supported by said frame and geared to the motor, and an annular track upon which the traction wheel travels, substantially as specified.

2. The combination of a turn table, tracks thereon, a pivot for said turn table, an electric motor and traction wheel geared together, a supporting frame therefor parallel with the tracks of the turn table, the inner end of the supporting frame being pivoted to the turn table by a transverse pivot, substantially as described.

3. The combination of the turn table having side frames, a supporting frame mounted between the side frames of the turn table and 'pivotedsome distance from the end, a traction Wheel carried by said frame, and an electric motor also carried by the frame and geared to the traction wheel, the whole so arranged that the turn table is free to rock while the traction wheel at all times rests upon the rail, substantially 'as described.

In testimony whereof I have signed my name to this speciiicationin the presence of two subscribing witnesses.

HOWE E. DANZENBAKER.

Witnesses:

JOSEPH H. KLEIN, HENRY HowsoN.

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